Grain unloader and elevator.



Patented Uct. 29, |901. F. JESTRAB.

. GRAIN UNLOA'DER AND ELEVATOR.

(Application led Jan. 4, 1901.)

2 Sheets-Sheet I.

(N0 Model.)

www mi N0. 685,684.` Paented 00L 29, I90l.

F. JESTRAB.

GRAIN UNLDADER AND ELEVATOH.

` (Application filed Jan. 4, 19'01.) (No Model.) 2 Sheets-Sheet 2.

UNrrn^ VPrAPrns FRANK .InsTRAB, or PisnK, NORTH DAKorA.

GRAIN UNLOADER AND ELEVATOR.

SPECIFICATON forming part of Letters Eatent No. 685,684, dated October29, 1901.

Application filed January 4, 1901. Serial No. 42,125. (No model.)

To @ZZ whom it may concern:

Be it known that I, FRANK JESTRAB, a citizen of the United States,residing at Pisek, in the county of Walsh and State of North Dakota,have invented a new and useful Grain Unloader and Elevator, of which thefollowing'is a specification. l

Myinvention is an improved portable grain elevator and unloader fortransferring grain from a wagon to a c ar, granary, or the like.

My invention consists in the peculiar construction and combination Vfofdevices hereinafter fully set forth,and pointed out in the claims.

In the accompanying drawings, Figure 1 is a vertical sectional view of agrain unloader and elevator constructed in accordance with my invention,showing the elevator raised to its operative position and withv itslower end in communication with the discharge end of the grain-receivinghopper. Fig. 2 is a side elevation of the same, showing the elevatorfolded over the truck. Fig. 3 is a top plan view of the same. Fig. 4 isa vertical transverse sectional view of the same. Figs. 5, 6, and 7 aredetail views of the hopper and the means for discharging the graintherefrom to the elevator, the said figures illustrating modified formsofmy invention.

In the embodiment of-my invention l p rovide a receiving-hopper l, whichis supported on a truck-,frame 2,that is provided with supporting-wheels3, whereby it may be readily moved from point to point and whereby thereceiving-hopper may be readilyrun undera Wagon-body or the wagon backedover the hopper. It Will be understood that the size and proportion ofthe parts of the hopper and truck must be such 4as t enable the same tobe used as hereinbefore stated. The hopper is provided with adischarge-openi ng 4 at its rear end ,to which a suitable dischargemechanism, located in the bottom of the hopper, conducts. In the form ofmy invention shown in Figs. 1, 2, 3, and 4 a `conveying- Worm 5 islocated in the i bottom of the hop-A per and is adapted to force thegrain from the hopper to the dischargefopening 4. The front end of theWorm is provided with an extended shaft 6, to the front end of which iskeyed a beveled gear-wheel 7. The same is engaged by'a similargear-wheel 8 on a shaft 9, which is transversely disposed with relationto the worm and is journaled in suitable bearings 10 under thetrucktrame. A sprocket-wheelll is keyed to the said shaft 9, and thesame is further provided with a power-pulley 12 or other suitable meansfor transmitting power thereto from a suitable engine or other sourceofpower.

Standards 13 rise from the sides of the truck-frame, at the rear endthereof, and between the said standards the trunk 14 of the elevator(generically indicated at l5) is pivotally supported on a shaft 16,which extends transversely through the trunk and is journaled inbearings 17, with which said stand- 'ards 13 are provided. The saidtrunk at its lower end is provided with an intake 18, which communicateswith the discharge-opening 4of the hopper when the trunk is turned onits pivotal support to the position indi'- cated in'Fig. 1 of thedrawings, and the said trunk'is provided at its upper end with the usualdischarge-spout 19. l Any suitable form of endless movable elevatingapparatus (indicated at 20) may be employed in the trunk, and the sameis driven by the coactiontherewith of the pivotal shaftlG, which hencebecomes the power-shaft of the elevator. For the purposes ofillustration YI have herein shown the shaft 16V as provided withsprocketwheels 2l, which engage'and operate endless sprocket-chains 22,that carry the elevatingbuckets 23. The said shatt 16 is provided at oneend with a sprocket-wheel 24, and the same is connectedto thesprocketwheel 11 on the shaft 9 byan Aendless sprocket-chain 25, wherebypower is communicated from y the 'shaft 9 not only to the feed-worm, butalso to the elevator, so that the worm and elevator operate in unison.It will be further understood that by this construction and combinationof devices, whereby power is communicated from the power-shaft 9 to boththe feed-worm and the elevator, the elevator shaft when it is disposedover the truck-frame in the position shown in Fig. 2. When the elevatoris disposed in its'operative vertical position, (shown in Fig. 1,) thesame is locked inl such position by a lock-bar 26, which is does notbecome disconnected from the power-V i IOO pivoted to one side of thetruck-frame at the rear end thereof, as at 27, and is secured to theopposite side of the truck-frame by a screw or other suitable device, asat 2S. It will be understood that the said lock-bar must be unshippedand turned out of the way of the elevator-trunk before the elevator canbe turned on its pivots and disposed over the truck, as shown in Fig. 2.

`In the modified form of my invention shown in Fig. 5 I discard thefeed-worm 5 and employ in lieu thereof an endless conveyer 29 in thebottom of the hopper to move the grain to the discharge-opening 4thereof, the said endless conveyer being directly operated by thepower-shaft 9.

In the modied form of my invention shown in Fig. 6 I employ areciprocating feeder 30 in the bottom of the hopper in lieu of either ofthe devices hereinbefore described and connect the said reciprocatingfeeder, by means of a link 31, with a crank 32, with which I provide thepower-shaft 9.

In the modified form of myinvention shown in Fig. V I provide the hopperwith a bottomboard 33, which is pivoted at its end proximate to thedischarge-opening 4 of the hopper and extends in an inclined directionlengthwise in the hopper, and said bottomboard may be inclined to anyrequisite angle in order to discharge the grain in the hopper by gravitythrough the opening 4 to the elevater.

Other modifications may be made without departing from the spirit of myinvention.

Having thus described my invention, I claim 1. In combination with atruck having a receiving-hopper, and standards which rise from the sidesof said truck, beyond and above the discharge end of the hopper, anelevatortrunk having a pivotal shaft at a point intermediate of the endsof said elevator-trunk and journaled in bearings on said standards, oneend of said trunk when lowered communicating with the discharge end ofsaid hopper, and an endless traveling elevating mechanism in said trunk,said elevating mechanism being driven by s aid pivotal shaft, the latterhaving a pulley, a feed-worm in the bottom of said hopper, to conveymaterial to the lower end of said elevator-trunk, a powershaft geared tosaid feed-worm, a pulley on said power-shaft, and an endless beltconnecting said pulley andthe pulley on said pivotal shaft,substantially as described.

2. In combination with a truck having a receiving-hopper, and standardswhich risc from the sides of said truck, beyond and above the dischargeend of the hopper, an elevatortrunk having a pivotal shaft at a pointinter mediate ol the ends of said elevator-trunk and journaled inbearings on said standards, one end of said trunk when loweredcommunicating with the discharge end of said hopper, and an endlesstraveling elevating mechanism in said trunk, said elevating mechanismbeing driven by said pivotal shaft, a feedworm in said hopper to conveymaterial therefrom to the lower end of said elevator-trunk, apower-shaft, and connections between the same and said feed-worm andpivotal driving-shaft, substantially as described.

3. In combination with a truck having side bars, a receiving-hopperthereon, and standards which rise from said side bars above and beyondthe discharge end of the hopper, an elevator-trunk pivotally mounted ata point intermediate of its ends, between said standards, one end ofsaid trunk, When lowered, being adapted to communicate with thedischarge end of the hopper and to swing between said side bars of saidtruck, and a locking-bar, to secure said trunk in operative position,substantially as described.

4. In combination with a truck having a receiving-hopper, and standardswhich rise from the sides of said truck, beyond and above the dischargeend of the hopper, an elevatortrunk having a pivotal shaft at a pointintermediate of the ends of said elevator-trunk and journaled inbearings on said standards, one end of said trunk when loweredcommunicating with the discharge end of said hopper, and an endlesstraveling elevating mechanism in said trunk, said elevating mechanismbeing d riven by said pivotal shaft, a feed mechanism in said hopper,and connections between said feed mechanism and the pivot-a1 power-shaftof said elevator, substantially as described.

In testimony that I claim the foregoing as lOO

